MATERIAL
SAFETY
DATA SHEET
Linde
Gas LLC
LLC
AGA GAS,
INC. (216)
(216) 642-6600
642-6600
Linde
Gas
P.O.
Box
94737
6055Box
ROCKSIDE
P.O.
94737 WOODS BLVD
Cleveland,
Ohio 44101
44101
P.O. BOX 94737
Cleveland,
Ohio
www.us.lindegas.com
CLEVELAND, OH 44101-4737
www.us.lindegas.com
No. 55
PRODUCT NAME
CAS #
109-66-0
DOT I.D. No.:
UN 1265
DOT Hazard Class:
Class 3, Packing Group I
Formula
n-C5H12
Pentane (See NOTE on Page 4)
TRADE NAME AND SYNONYMS
Pentanes (D.O.T.); Pentane; Normal Pentane
CHEMICAL NAME AND SYNONYMS
n-Pentane
ISSUE DATES AND REVISIONS
Chemical Family:
Alkane
Revised May 1998
HEALTH HAZARD DATA
TIME WEIGHTED AVERAGE EXPOSURE LIMIT
TWA: 600 Molar PPM; STEL = 750 Molar PPM (ACGIH 1997). OSHA 1995 PEL (8hr. TWA = 1,000 Molar
PPM. ACGIH intends to change the data for pentane so as to delete the STEL data.
SYMPTOMS OF EXPOSURE
Vapors may cause mild irritation of eyes, skin or lungs.
Inhalation: High concentrations of pentane so as to exclude an adequate supply of oxygen to the lungs
causes dizziness, deeper breathing due to air hunger, possible nausea and eventaul unconsciousness.
Contact with rapidly evaporating liquid can cause cryogenic “burns” or frostbite.
TOXICOLOGICAL PROPERTIES
Pentane is inactive biologically and essentially nontoxic; therefore, the major property is the exclusion of an
adequate supply of oxygen to the lungs.
Frostbite effects are a change in color or the skin to gray or white, possibly followed by blistering.
Persons in ill health where such illness would be aggravated by exposure to pentane should not be allowed
to work with or handle this product. (Continued on Page 4)
RECOMMENDED FIRST AID TREATMENT
PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF OVEREXPOSURE TO PENTANE.
RESCUE PERSONNEL SHOULD BE EQUIPPED WITH SELF-CONTAINED BREATHING APPARATUS
AND BE COGNIZANT OF FIRE HAZARD.
Inhalation: Conscious persons should be assisted to an uncontaminated area and inhale fresh air. Quick
removal from the contaminated area is most important. Unconscious persons should be moved to an
uncontaminated area, given assisted respiration and supplemental oxygen. Futher treatment should be
symptomatic and supportive.
Dermal Contact or Frostbite: Remove contaminated clothing and flush affected areas with lukewarm water.
DO NOT USE HOT WATER. A physician should see the patient promptly if the cryogenic “burn” has resulted
in blistering of the dermal surface or deep tissue freezing.
Information contained in this material safety data sheet is offered without charge for use by technically qualified personnel at their discretion and
risk. All statements, technical information and recommendations contained herein are based on tests and data which we believe to be reliable, but
the accuracy or completeness thereof is not guaranteed and no warranty of any kind is made with respect thereto. This information is not intended
as a license to operate under or a recommendation to practice or infringe any patent of this Company or others covering any process, composition
of matter or use.
Since the Company shall have no control of the use of the product described herein, the Company assumes no liability for loss or damage incurred
from the proper or improper use of such product.
PENTANE
HAZARDOUS MIXTURES OF OTHER LIQUIDS, SOLIDS, OR GASES
Pentane is flammable in air.
PHYSICAL DATA (FOR PURE n-PENTANE)
BOILING POINT
LIQUID DENSITY AT BOILING POINT
97°F (36°C)
@ 60°F (15.5 C) = 39.29 lb/ft3 (629.4 kg/m3)
VAPOR PRESSURE
GAS DENSITY AT 70°F. 1 atm
@ 100°F (37.8 C) = 15 psia (103 kPa)
@ 60°F (15.5°C) = .2015 lb/ft3 (3.228 kg/m3)
SOLUBILITY IN WATER
FREEZING POINT
Negligible
-201.5°F (-129.7°C)
EVAPORATION RATE
SPECIFIC GRAVITY (AIR=1)
(Butyl acetate = 1) = 28.6
@ 70°F (21.1°C) = 2.48
APPEARANCE AND ODOR
Colorless liquid and vapor with mild paraffinic odor; Specific gravity (H2O=1)
@ 60/60°F = 0.63
FIRE AND EXPLOSION HAZARD DATA (FOR PURE n-PENTANE)
FLASH POINT (Method used)
AUTO IGNITION TEMPERATURE
FLAMMABLE LIMITS % BY VOLUME (See Page 4)
<-40°F & C (C.C.)
Unknown
LEL 1.5
UEL 7.8
EXTINGUISHING MEDIA
ELECTRICAL CLASSIFICATION
Water (foam), dry chemical, carbon dioxide
Class 1, Group not specified
SPECIAL FIRE FIGHTING PROCEDURES
If possible, stop flow of pentane. Use water spray to cool surrounding containers.
UNUSUAL FIRE AND EXPLOSION HAZARDS
None
REACTIVITY DATA
STABILITY
CONDITIONS TO AVOID
Unstable
None
Stable
INCOMPATIBILITY (Materials to avoid)
X
Oxygen, other oxidizers
HAZARDOUS DECOMPOSITION PRODUCTS
HAZARDOUS POLYMERIZATION
None
CONDITIONS TO AVOID
May Occur
Will Not Occur
None
X
SPILL OR LEAK PROCEDURES
STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED
Evacuate all personnel from affected area. Use appropriate protective equipment. If leak is in user’s
equipment, be certain to purge piping with an inert gas prior to attempting repairs. If leak is in container or
container valve, contact your closest supplier location or call the emergency telephone number listed herein.
WASTE DISPOSAL METHOD
Do nct attempt to dispose of waste or unused quant ties. Return ln the shipping container properly labeled,
with any valve outlet plugs or caps secured and valve protection cap in place to your supplier. For
emergency disposal assistance,contact your closest supplier location or call the emergency telephone
number listed herein.
2
PENTANE
SPECIAL PROTECTION INFORMATION
RESPIRATORY PROTECTION
(Specify type)
Positive pressure air line with mask or self-contained breathing apparatus should be
available for emergency use.
VENTILATION
LOCAL EXHAUST
SPECIAL
N/A
To prevent accumulation above the TWA
Hood with forced ventilation
MECHANICAL (Gen.)
OTHER
In accordance with electrical codes
N/A
PROTECTIVE GLOVES
Butyl rubber, PVC or polyethylene
EYE PROTECTION
Safety goggles or glasses
OTHER PROTECTIVE EQUIPMENT
Safety shoes, safety shower, eyewash “fountain”
SPECIAL PRECAUTIONS*
SPECIAL LABELING INFORMATION
DOT Shipping Name: Pentanes
DOT Shipping Label: Flammable Liquid
DOT Hazard Class: Division Class 3, Packing Group I
I.D. No.:
UN 1265
SPECIAL HANDLING RECOMMENDATIONS
Use only in well-ventilated areas. Valve protection caps must remain in place unless container is secured
with valve outlet piped to use point. Do not drag, slide or roll cylinders. Use a suitable hand truck for cylinder
movement. Use a pressure reducing regulator when connecting cylinder to lower pressure (<3,000 psig)
piping or systems. Do not heat cylinder by any means to increase the discharge rate of product from the
cylinder. Use a check valve or trap in the discharge line to prevent hazardous back flow into the cylinder.
For additional handling recommendations, consult Compressed Gas Association’s Pamphlet P-1.
SPECIAL STORAGE RECOMMENDATIONS
Protect cylinders from physical damage. Store in cool, dry, well-ventilated area of noncombustible
construction away from heavily trafficked areas and emergency exits. Do not allow the temperature where
cylinders are stored to exceed 125F (52C). Cylinders should be stored upright and firmly secured to prevent
falling or being knocked over. Full and empty cylinders should be segregated. Use a “first in - first out”
inventory system to prevent full cylinders being stored for excessive periods of time. Post “No Smoking or
Open Flames” signs in the storage or use area. There should be no sources of ignition in the storage or use
area.
For additional storage recommendations, consult Compressed Gas Association’s Pamphlet P-1.
SPECIAL PACKAGING RECOMMENDATIONS
Pentane is compatible with most common materials of construction.
OTHER RECOMMENDATIONS OR PRECAUTIONS
Earth-ground and bond all lines and equipment associated with the pentane system. Electrical equipment
should be non-sparking or explosion proof. Compressed gas cylinders should not be refilled except by
qualified producers of compressed gases. Shipment of a compressed gas cylinder which has not been filled
by the owner or with his (written) consent is a violation of Federal Law (49CFR). (Continued on Page 4)
*Various Government Agencies (i.e. Department of Transportation, Occupational Safety and Health Administration, Food and Drug Administration
and others) may have specific regulations concerning the transportation, handling, storage or use of this product which will not be reflected in this
data sheet. The customer should review these regulations to ensure that he is in full compliance.
3
PENTANE
PRODUCT NAME: PENTANE (Continued)
NOTE: Your supplier only offers pentane in low concentrations mixed in diluent (balance) gases. Material
safety data sheets for the balance gas(es) are available from your supplier.
HEALTH HAZARD DATA
TOXICOLOGICAL PROPERTIES: (Continued)
Pentane is not listed in the IARC, NTP or by OSHA as a carcinogen or potential carcinogen.
SPECIAL PRECAUTIONS
OTHER RECOMMENDATIONS OR PRECAUTIONS: (Continued)
Always secure cylinders in an upright position before transporting them. NEYER transport cylinders in trunks
of vehicles, enclosed vans, truck cabs or in passenger compartments. Transport cylinders secured in open
flatbed or in open pick-up type vehicles.
Reporting under SARA, Title III, Section 313 not required.
NFPA 704 NO. for pentane =
4
1
4
O
None